Ogi – also called pap or akamu – is a fermented cereal porridge eaten across Nigeria and West Africa. Maize, sorghum or millet is soaked, wet-milled and sieved, and the fine starch that settles out is left to sour. The result is a smooth, tangy paste that is whisked into boiling water to make a light porridge for breakfast, or cooked thicker into a set gel called agidi or eko. It is also one of the region’s most common weaning foods (FAO, 1999).
How Ogi Is Made Traditionally
According to the FAO’s review of fermented cereals (FAO), grains are soaked in water for one to three days, wet-milled and sieved to remove the bran, hulls and germ (the residue is often used as animal feed), and the fine filtrate is left to ferment for two to three days into a sour, white starchy sediment. Ogi is sold as a wet cake wrapped in leaves or plastic, then diluted and boiled into pap, or cooked into a stiff gel (agidi or eko).
What Makes It Sour
Lactic acid bacteria, above all Lactobacillus plantarum, produce most of the acid, while yeasts such as Saccharomyces cerevisiae and Candida species add flavor (FAO). Yeasts isolated from fermenting maize for ogi also supported the growth of L. plantarum and could break down phytate, which helps mineral availability (Omemu et al., 2007). Finished ogi is quite acidic: samples in one Nigerian study ranged from pH 3.0 to 3.9 (Odugbemi et al., 1991).
Making Ogi at Home
The full recipe is in the recipe card above. The key stages are a long soak, a very fine grind, straining out the bran, letting the starch settle, and then souring the wet starch for a day or two before storing it in the fridge.
Timeline
- Soak (2–3 days): change the water daily. A slightly sour smell and a few bubbles by day two are normal.
- Grind and strain (1–2 hours): grind with fresh water to a smooth slurry, strain through fine cloth, and let the starch settle for 4–6 hours.
- Sour (1–2 days): pour off the clear water and leave the wet starch covered at room temperature until it smells pleasantly sour.
- Store: keep the ogi cake covered with a little water in the fridge and use within about 5 days, or freeze portions.
Nutrition note: sieving removes nutrients
Much of the grain’s protein, fat and minerals sits in the germ and bran that sieving removes, so traditional ogi loses a lot of its original nutrition (FAO). Grinding very finely and skipping the sieve kept more nutrients, and most tasters in one Nigerian study still found the unsieved ogi acceptable (Ojofeitimi & Abiose, 1996). Many families also enrich pap with milk, groundnut or soy.
Cooking Pap
- Mix about ½ cup of ogi paste with ½ cup of cool water until smooth.
- Bring 1½ cups of water to a boil, then lower the heat.
- Pour the slurry in a thin stream, whisking constantly, and cook for a few minutes until glossy and thickened. Add hot water for a thinner pap.
- Serve with milk and sugar or honey, or alongside akara (bean fritters) or moin moin.
For agidi or eko, cook the ogi much thicker, then leave it to set (traditionally wrapped in leaves) and slice it to eat with stews.
Variations
- Millet or sorghum ogi: replace some or all of the maize. Red sorghum gives a pinkish ogi; millet sours a little faster.
- Enriched pap: stir in milk, groundnut paste or soy flour after cooking for more protein.
- Spiced: ginger, cloves or pepper are common additions to the soaking or cooking water.
Ogi as a Weaning Food: Safety Notes
Ogi’s acidity inhibits many pathogens – in laboratory tests, cooked ogi suppressed seeded E. coli and Salmonella (Odugbemi et al., 1991). But acidity is not a guarantee: in a study of cooked ogi collected in rural Nigerian homes at feeding time (average pH 3.6), 31% of samples were contaminated with faecal bacteria, and contamination increased the longer the pap stood (Odugbemi et al., 1993). For babies:
- Use clean water, utensils and hands at every stage.
- Cook pap fresh and feed it promptly; don’t keep cooked pap for later feeds.
- Use good-quality, mold-free grain. Processing reduces some mycotoxins, but modified forms were still found in finished infant ogi in one study (Chilaka et al., 2019).
- Ogi is a starchy food: combine it with protein-rich foods, and follow local health guidance on weaning.
Related fermented grain foods: kunu from Northern Nigeria, South Africa’s maheu, Tanzania’s togwa and Tamil Nadu’s koozh. In Botswana and South Africa, soured sorghum meal is cooked into ting.